Across
- 3. What scientist developed the idea of evolution by natural selection after studying organisms around the world?
- 4. On what continent did Darwin make many observations of different plants and animals during his voyage on the HMS Beagle?
- 9. What includes all the living and nonliving things that surround an organism?
- 10. What are the young or new organisms produced by parents called?
Down
- 1. What word describes a species when no members of that species are still alive?
- 2. What must an organism do to stay alive long enough to reproduce?
- 5. What inherited features help an organism survive in its environment?
- 6. What must organisms do to produce offspring and pass their inherited traits to the next generation?
- 7. What do we call an organism from the past that a current organism descended from?
- 8. What type of birds did Darwin study on the Galápagos Islands that helped him develop his ideas about evolution?